Device for collecting, transferring and storing samples of biological and/or chemical material

ABSTRACT

The concepts herein relate to a device for collecting, transferring and storing samples of biological and/or chemical material. The device includes a support body extending along a main longitudinal direction between a first and a second end opposite each other and a collecting portion engaged with one of said ends of the support body and suitable for collecting an amount of a sample of biological and/or chemical material. The support body is defined by at least a first sub-body and a second sub-body extending longitudinally and configured to be selectively engaged and separated with and from each other. The support body is configured to operate between an assembled condition, wherein the first and the second sub-body are engaged with each other, and a separated condition, wherein the first and the second sub-body are separated and bear, respectively, a first and a second sub-collecting portion of the collecting portion.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a U.S. National Phase application under U.S.C. § 371and claims the benefit of priority to International Application No.PCT/IB2016/054943, filed Aug. 18, 2016, which claims priority to ItalianPatent Application No. IT102015000046892, filed Aug. 27, 2015, thecontents of which are hereby incorporated by reference.

The concepts herein relate to a device for collecting, transferring andstoring samples of biological and chemical material. The concepts hereinfurther relate to a process for manufacturing said device, a use of thedevice and a method for collecting, transferring and storing samples ofbiological and/or chemical material by using said device. The device ispreferably in the form of a swab. The concepts herein have application,for example, for the collection, transfer and storage of biologicalmaterial drawn directly from the human body or for environmentalsampling of varying nature. The concepts herein have particularapplication in the forensic field, where it is necessary to ensurecorrect storage and complete traceability of samples of biologicaland/or chemical material, retrieved, for example, from crime scenes, andit is in particular of fundamental importance to ensure that the samesamples collected and already analysed through a first series ofanalyses are also made available for subsequent analyses conducted evena long time after the sample itself was collected (even years). Thisbecomes necessary, for example, in cases in which a judicial authorityorders, at a later moment in time, that further analyses be conducted toverify and cross-check the results obtained from analyses performed atan earlier moment in time.

The use of various types of devices for collecting and transferringanalytes such as organic or biological substances, for example to besubsequently subjected to analytical or diagnostic laboratory tests, isknown in the prior art. For example, there are known swabs consisting ofa stem with a quantity of cotton fibre wrapped around one end whichdefines a collecting portion suitable for absorbing within it the sampleto be collected. Such devices tend to retain the sample inside thecollecting portion and release only a limited percentage of the samplefor analytical purposes. There are also known swabs provided withcollecting portions made of absorbing materials, such as sponge orpolymeric materials capable of absorbing the samples to be collected.Flocked swabs comprising an elongate support body and a plurality offlocked fibres at one end of the support which define a flocked fibrecollecting portion for analytes or biological material are also knownfrom patent EP1608268 belonging to the Applicant of the presentapplication. Said flocked swabs enable the release of a very highpercentage of the biological or chemical material absorbed. Theabove-described swabs have elongate stems generally made of plasticmaterials, for example polystyrene, which are more or less flexibleaccording to the specific application. The known swabs sometimes havepredetermined breakage points positioned in an intermediate portion ofthe elongate stem and specifically provided to enable the stem to bebroken in a precise desired point in order to allow the storage ortransport of the collecting portion alone without the remaining grippart, for example to allow the collecting portion to be inserted in testtubes of a reduced size, or other containers for transport or analysis.In other cases the stem is cut manually or automatically to facilitatethe controlled breakage thereof at the appropriate moment. The knownswabs described above have some limitations in the case of specificapplications, such as, for example, the use thereof to collect samplesfrom crime scenes, where it is necessary to be able to analyse part ofthe biological and/or chemical sample collected at a first moment intime, while preserving another part of the same collected sample toenable full traceability of the sample and the performance ofverifications, if necessary, on the same sample at a later moment intime, even long afterward. Essentially, it is a matter of responding tothe need for test repeatability, a critical and frequent issue in thejudicial and forensic realms. It is known that the collecting portion ofthe device can be treated, for example, with liquids or other substancesin order to extract the largest possible quantity of biological and/orchemical sample from it and enable the necessary analyses to beperformed on the sample, but this process precludes preserving part ofthe same sample for future use, since once the sample has been extractedfrom the collecting portion there is no longer any guarantee that thesample itself will remain intact and in conformity with or substantiallyequivalent to the originally collected one. In an attempt to overcomesuch limitations, a manual process is known, for example, which consistsin scraping a part of the fibre of the flocked portion of the device (orremoving, in a similar manner, a part of the enveloping cotton fibre orsponge defining the collecting portion), so as to subject only thefibres or sponge portions scraped away from the collecting portion andseparated from the stem to the extraction process, while preserving theremaining part of the device and collecting portion for future use. Thissolution has some limitations, however, for example: a risk ofcontamination of the sample, a risk of contamination of the environmentsin which the process is carried out, the possibility of human error, therisk of having to repeat the procedure more than once if the fibre partremoved manually does not contain a sufficient amount of biologicaland/or chemical sample, the need for considerable manual skill andexperience on the part of the personnel involved in the operation andthe laboriousness and cost connected to the manual operations and theassociated materials (single-use) necessary. Furthermore, it is aninefficient, costly process and also poses the opposite risk of removingan excessive amount of sample and not keeping a sufficient amount for afuture use. Furthermore, the process does not ensure a sufficiently highlevel of sample traceability as is required in criminal proceedings, inthe context of which samples for forensic purposes are normallycollected.

A further solution is also known from document WO2014/207598, belongingto the Applicant of the present application; it envisages providing, onthe stem of a flocked device, a weakened zone positioned in the flockedcollecting portion of the device, aimed at facilitating the selectivebreakage of the stem in the flocked portion and the separation of thesame flocked portion into two parts. However, this solution, despitebeing satisfactory for use for other purposes, does not enable all thelimitations identified above to be overcome. In certain instances, theconcepts herein resolve one or more of the problems found in the priorart. Other objects of the concepts herein are to propose a device forcollecting, transferring and storing samples of biological and chemicalmaterial, a process for the manufacture thereof, and a method forcollecting, transferring and storing samples of biological and chemicalmaterial, which:

-   -   enable and simplify the storage of an appropriate amount of        biological and/or chemical sample for the performance of        analyses at different moments in time, also with very long time        intervals between one analysis and the other; and/or    -   guarantee a high degree of traceability and correct storage of        the biological and/or chemical material even for long periods;        and/or    -   reduce the necessity of handling and the risk of contamination        of the samples collected and of the work environments of the        personnel involved in processing the samples; and/or    -   increase the efficiency, safety and reliability of processing of        the biological and/or chemical samples collected; and/or    -   are highly flexible and highly convenient to use; and/or    -   are simple and economical to implement.

These objects and others besides, which will become more apparent fromthe following description, are substantially achieved by a device, aprocess for manufacturing a device and a method for collecting,transferring and storing samples of biological and chemical material bysaid device, in accordance with what is expressed in one or more of theappended claims, taken on their own or in combination with one another,and/or in combination with any of the aspects set forth below.

In one aspect, a device for collecting, transferring and storing samplesof biological and/or chemical material is in the form of a swab.

In a further aspect, a support body of the device is in the form of astem.

In a further aspect, a device for collecting, transferring and storingsamples of biological and/or chemical material has a first sub-body anda second sub-body configured to be separable by rotating the firstsub-body relative to the second sub-body around a rotation pin.

In a further aspect, due to a lever effect, this rotation causes theseparation of the first sub-body relative to the second sub-body and/orthe progressive separation of the two sub-collecting portions.

In a further aspect, the device has a first sub-body and a secondsub-body configured to be separable by progressive distancing of thefirst sub-body relative to the second sub-body starting from an area ofthe first sub-body or of the second sub-body opposite to a collectingportion of the sample.

In a further aspect, a main longitudinal direction of the support bodycoincides with a central axis of longitudinal extension or axis ofsymmetry of the support body.

In a further aspect, bending causes the separation of the first sub-bodyrelative to the second sub-body and/or the progressive separation of thetwo sub-collecting portions.

In a further aspect, the first sub-body and the second sub-body areconfigured to be separable at least partially by bending at least a partof the first sub-body or of the second sub-body.

In a further aspect, the bending causes the separation of the firstsub-body relative to the second sub-body and/or the progressiveseparation of the two sub-collecting portions.

In a further aspect, the first and the second sub-body are configured tobe selectively separable and coupled on respective contact surfaces orrespective flat contact surfaces perpendicular to the main longitudinaldirection.

In a further aspect, the first sub-body and the second sub-body can beselectively coupled and separated according to an assembling directionparallel to or coinciding with said main longitudinal direction.

In a further aspect, the first sub-body extends longitudinally alongsaid main longitudinal direction solely in a part of the first end ofthe support body and/or a part of the collecting portion, the remainingparts of the support body being defined solely by the second sub-body,or vice versa.

In a further aspect the first sub-body extends longitudinally along saidmain longitudinal direction solely at the first end of the support bodyand/or the collecting portion, the remaining parts of the support bodybeing defined solely by the second sub-body, or vice versa.

In a further aspect, a longitudinal portion of the support body consistssolely of the second sub-body.

In a further aspect, another longitudinal portion of the support bodyconsists solely of the second sub-body

In a further aspect, the length of the support body corresponds to thesum of the lengths of the first sub-body and second sub-body.

In a further aspect, the first sub-body and the second sub-body bothextend at least along the first end of the support body or at leastalong the collecting portion.

In a further aspect, the first sub-body and the second sub-body bothextend at least from the first end of the support body to theintermediate portion of the support body.

In a further aspect, the first sub-body and the second sub-body bothextend at least from the first end of the support body to the second endof the support body.

In a further aspect, the collecting portion comprises an absorbentsponge material.

In a further aspect, the collecting portion comprises an absorbentpolymeric material.

In a further aspect, the absorbing material is fixed to the first end ofthe support body by an adhesive.

In a further aspect, the absorbing material is fixed to the first end ofthe support body by temporary heating of at least the first end of thesupport body and/or of the absorbing material, without the use of anadhesive.

In a further aspect, the first and the second sub-body have respectiveengaging elements of the press fit or snap fit or interference fit type.

In a further aspect, the engaging elements comprise one or more housingseats formed at least on the first sub-body and one or more protrusionsformed at least on the second sub-body, or vice versa, each protrusionbeing suitable for being engaged inside a respective housing seat in theassembled condition of the support body.

In a further aspect, the first and the second sub-body have an elongateconformation.

In a further aspect, the first and/or the second sub-body have aweakened portion configured to enable the separation, from anintermediate portion of the support body of the device, of an endportion of the first and/or of the second sub-body bearing a respectivesub-portion of the collecting portion.

In a further aspect, the device comprises a gripping portion engagedwith the support body at the second end of the support body, thegripping portion being solidly joined, in the separated condition of thesupport body, to the first sub-body and/or second sub-body of thesupport body.

In a further aspect, the first and the second sub-body are configured tobe separated along a separation surface defined on the first and thesecond sub-body and extending longitudinally for at least half or for atleast three quarters of the length of the support body.

In a further aspect, the separation surface extends longitudinally forthe entire length of the support body.

In a further aspect, the separation surface extends longitudinally onlyfor part of the length of the support body and along the internal lengthof the first sub-body or of the second sub-body.

In a further aspect, the separation surface extends seamlessly betweenthe first and the second end of the support body.

In a further aspect, the first and the second sub-body are made ofplastic material.

In a further aspect, the entire support body is made of plasticmaterial.

In a further aspect, the sub-amounts of biological sample arehalf-amounts of biological sample.

In a further aspect, the concepts herein relate to a use of a device,according to any one of the appended claims, for collecting biologicalor chemical material for forensic purposes and/or from crime scenes, orfor environmental sampling, or for collecting samples from a human oranimal body and/or from a human or animal orifice, in particular forcollecting samples from the mouth, pharynx, nasal cavity, eyes, urethra,vagina, anus, rectum, or skin.

In a further aspect, a use of the device for collecting, transferringand storing samples of biological and/or chemical material comprises thestep of collecting the sample at least at an end tip of the collectingportion.

In a further aspect, the use of the device comprises a step ofcollecting the sample in a substantially uniform manner at least on theend tip of the collecting portion, in such a way that the first andsecond sub-collecting portions are both provided with a sufficientamount of collected sample for conducting analyses of the sample and/orare similar to each other or substantially analogous.

In a further aspect, the use of the device further comprises a step ofdehydrating the sample collected on the collecting portion.

In a further aspect, the use of the device further comprises a step ofseparating the second sub-body of the support body from the firstsub-body of the support body, this separation further causing theseparation of a second sub-collecting portion from a firstsub-collecting portion.

In a further aspect, the use of the device further comprises a step ofsubjecting a sample present on the first sub-collecting portion to aprocess of analysis and a step of storing the second sub-collectingportion for sample traceability purposes and for a possible subsequentanalytical use, or vice versa.

In a further aspect, there is provided a kit for collecting,transporting and storing samples of biological or chemical material,comprising a device according to any one of the appended device claimsor above-described aspects, and further comprising one or morecontainers or test tubes for housing, transporting and/or storing atleast the first and/or the second sub-collecting portion.

In a further aspect, the kit further comprises a dehydrating elementthat can be associated with the device for at least a predeterminedperiod of time in order to dehydrate the sample present on thecollecting portion of the device.

In a further aspect, a process for manufacturing a device forcollecting, transferring and storing samples of biological and/orchemical material, according to any one of the appended device claims orabove-described aspects, comprises at least a step of making the firstsub-body and the second sub-body by moulding.

In a further aspect, the manufacturing process comprises a step ofmaking the first sub-body and the second sub-body by injection moulding.

In a further aspect, the manufacturing process comprises a step ofmaking the first sub-body and the second sub-body as distinct elementsboth extending longitudinally along a main longitudinal direction of thesupport body of the device.

In a further aspect, the manufacturing process further comprises a stepof applying an amount of adhesive material on a first end of the supportbody and a step of applying an absorbing material on the first end ofthe support body to define the collecting portion.

In a further aspect, the manufacturing process further comprises a stepof heating at least a first end of the support body and/or an absorbingmaterial and a step of applying the absorbing material on the first endof the support body so as to bring about a stable coupling of theabsorbing material to the first end of the support body and define thecollecting portion.

In a further aspect, the manufacturing process further comprises a stepof applying an amount of adhesive material on a first end of the supportbody and a step of making a layer of flocked fibre on the first end ofthe support body so as to define the collecting portion.

In a further aspect of the manufacturing process, the step of making acollecting portion is carried out by flocking.

In a further aspect of the manufacturing process, the step of making acollecting portion is carried out by flocking in an electrostatic field,whereby the fibres are arranged in an ordered manner on the surface ofthe first end of the support body and/or are arranged, during thedeposition process, substantially perpendicularly to the surface itself.

In a further aspect, a method for collecting, transferring and storingsamples of biological and chemical material by a device according to anyone of the appended device claims or above-described aspects, furthercomprises a step of extracting at least a part of a first sub-amount ofthe sample from the first sub-collecting portion to enable analyticaloperations to be carried out on the biological sample at a first momentin time and a step of storing the second sub-amount of the sample on thesecond sub-collecting portion of the collecting portion for use at asecond moment in time following the first moment in time.

In a further aspect, the method for collecting, transferring and storingsamples of biological and chemical material comprises a separationbetween the first and the second sub-body, which takes place along alongitudinal separation surface of the support body.

In a further aspect, the method for collecting, transferring and storingsamples of biological and chemical material comprises storing, over aperiod of time, the first sub-amount of the biological sample and/or thesecond sub-amount of the biological sample in a substantially dry and/orsterile environment or container.

By way of non-limiting example, a detailed description of one or morepreferred embodiments of the concepts herein appears below, wherein:

FIG. 1 represents a kit for collecting, transporting and storing samplesof biological or chemical material, comprising a device and a containeror test tube;

FIG. 2 shows a device for collecting, transferring and storing samplesof biological and/or chemical material;

FIG. 3 shows the device of FIG. 2, wherein a first sub-body and a secondsub-body have been partially separated;

FIG. 4 shows the device of FIG. 3, wherein the first sub-body and thesecond sub-body have been completely separated;

FIG. 5 shows the second sub-body of the device of FIG. 3 having a firstend provided with a sub-collecting portion inserted in an Eppendorf-typetest tube, and wherein the second sub-body has been partially bent toenable the controlled breakage thereof in a weakened portion;

FIG. 6 shows a longitudinal sectional view of the device of FIG. 2;

FIG. 7 shows a variant of the device of FIG. 2, wherein the entiresupport body of the device is divided longitudinally into two sub-bodiesthat are in a condition of partial separation;

FIG. 8 shows a longitudinal sectional view of the device of FIG. 7 inthe assembled condition, with the two sub-bodies mutually coupled;

FIG. 9 shows a longitudinal sectional view of a third variant of thedevice, wherein the second sub-body extends longitudinally only in thecollecting portion, whereas the remaining length of the support body isformed by the first sub-body, which also forms a part of the collectingportion;

FIG. 10 shows a longitudinal sectional view of a fourth variant of thedevice, wherein the second sub-body extends only for part of acollecting portion and of a first end of the support body, and forms theterminal part of the first end, whereas the remaining length of thesupport body is formed by the first sub-body.

With reference to the figures, 1 denotes in its entirety a device forcollecting, transferring and storing samples of biological and/orchemical material. In the present text “biological material” isunderstand to include microbiological material as well. Furthermore, theterm “biological or chemical material” is understand to include inactual fact any type of analyte, such as, for example, but not only,microorganisms, antibodies/antigens, substances with an antimicrobialaction, nucleotides, antibiotics, hormones, DNA sequences, enzymes,organic material, biological material or material of biological origin,enrichment supplements or selective supplements for culture media, andthe like, as well as any type of chemical substance. Samples of varyingnature intended for subsequent analysis in the clinical, chemical,biological, microbiological, environmental, genetic, forensic or otherfields thus fall within this definition.

The device 1 comprises a support body 2, which extends along a mainlongitudinal direction 12 and has a substantially stem-like and/orelongate conformation along said main longitudinal direction 12. Thesupport body 2 can be in the form of a stem as illustrated in theappended figures and can have any cross section size, also a variableone, along its longitudinal extent. The support body 2 has a first and asecond end 2 a, 2 b, mutually opposite. The support body 2 can furtherhave a plurality of reinforcement ribs 3 defined in an intermediateportion 2 c positioned between the ends 2 a, 2 b.

The support body can be made of any material suited to the purpose. Thesupport body is preferably made of plastic material, in particular aplastic polymer, for example copolyester, polystyrene, polyamide/nylon,etc.

The device 1 further comprises a collecting portion 4 configured tocollect, for example to absorb or to collect by a mechanical action ofrubbing or of another type, an amount of a sample of biological and/orchemical material. The collecting portion 4 is defined at the first end2 a of the support body 2. The collecting portion 4 can be of a knowntype. Preferably, the collecting portion 4 is of a flocked type and thuscomprises a plurality of flocked fibres attached, for example by asuitable glue or by temporarily heating the plastic material of thesupport body, to the first end 2 a. The layer of flocked fibres can bemade, for example, by flocking in an electrostatic field, thanks towhich the fibres are arranged in an ordered manner on the surface of thefirst end. The flocked portion can be made, for example, according tothe teachings of the previously cited patent EP1608268 or the patentapplications WO2014/049460 and WO2014/207598, all in the name of theApplicant of the present application, and whose contents related to thetype of fibres used and conformation and characteristics of the layer offlocked fibres is incorporated herein by reference. Alternatively, thecollecting portion 4 can comprise an element made of absorbing material.For example, the collecting portion 4 can be made of sponge material,polymeric material or another absorbing material suitable for collectingbiological material. The collecting portion can be pre-treated bysubstances suitable for improving the preservation of the sample overtime and/or preparing the sample for subsequent analyses. As illustratedin the figure, at the second end 2 b of the support body 2 a grippingportion 5 can be defined, which is intended to simplify the handling ofthe device 1 itself. In one variant, the gripping portion can be hollowand contain a drying material. Preferably, the collecting portion 4 andthe gripping portion 5 are defined at opposite ends of the device 1. Asillustrated in FIG. 1, the gripping portion 5 can be suitable for actingas a cap for a container or test tube 6 in which the device can bepositioned or stored before collection of the sample or also aftercollection of the sample.

The support body 2 further comprises a first and a second sub-body 7, 8.The first and the second sub-body 7, 8 preferably have an elongateconformation. The first and the second sub-body 7, 8 can extendlongitudinally between the first and second ends 2 a, 2 b, as in thevariant of FIGS. 7 and 8. Alternatively, in the variant illustrated inFIGS. 1 to 6, the first sub-body 7 can extend for the entire length ofthe support body 2, whereas the second sub-body can extend only from thefirst end 2 a to a part of the intermediate portion 2 c, or vice versa.The support body 2 can further comprise a weakened portion 9 definednear the collecting portion 4 to enable selective breakage of thesupport body 2. The weakened portion 9 can be configured to enable thisselective breakage in the presence of a bending of the support body 2,at least when a certain radius of curvature is reached, as illustratedin FIG. 5 in relation to the second sub-body 8. As illustrated in FIGS.3, 4 and 5, the weakened portion 9 can be defined both on the firstsub-body 7 and on the second sub-body 8. The support body 2, and inparticular the first and the second sub-body 7, 8, can be made ofplastic material. Preferably, the first and the second sub-body 7, 8 aremade separately by moulding, in particular injection moulding. The firstand the second sub-body 7, 8 are configured to be selectively engagedand separated along at least a longitudinal portion of the support body2. The engagement between the first and the second sub-body 7, 8 and theseparation thereof are possible through a removable coupling, which canbe for example in the form of engaging elements 10. In particular, theengaging elements 10 enable the support body 2 to operate between anassembled condition and a separated condition. In the assembledcondition, illustrated for example in FIGS. 2, 6 and 8, the first andthe second sub-body 7, 8 are engaged with each other; in contrast, inthe separated condition, illustrated in FIG. 4, the first and the secondsub-body 7, 8 are separated. FIGS. 3 and 7 show a condition of partialseparation of the first and second sub-bodies 7, 8, in which theseparation of the collecting portion 4 in the first sub-collectingportion 4 a and second sub-collecting portion 4 b is taking place.

The engaging elements 10 are preferably defined on the first and secondsub-bodies 7, 8 and can be, for example, of the press fit or snap fit orinterference fit type. In accordance with the embodiment shown in theappended figures, the engaging elements 10 comprise protrusions 10 a andhousing seats 10 b for the protrusions 10 a. Preferably, the housingseats 10 b are of a shape mating that of the protrusions 10 a. Asillustrated in the appended figure, the housing seats 10 b can bedefined on the first sub-body 7 and the protrusions 10 a can be definedon the second sub-body 8, or vice versa. Alternatively, the firstsub-body 7 can comprise one or more housing seats 10 b and one or moreprotrusions 10 a and the second sub-body 8 can in turn comprise one ormore protrusions 10 a and one or more housing seats 10 b suitable forcooperating respectively with the housing seats 10 b and with theprotrusions 10 a of the first sub-body 7. The protrusions 10 a and thehousing seats 10 b could also be alternated on the due sub-bodies 7, 8,in such a way that each of the two sub-bodies 7, 8 has both protrusions10 a and housing seats 10 b. Preferably, the engaging elements 10consist of protrusion-housing seat pairs; in other words, correspondingto each protrusion 10 a there is a respective housing seat 10 b. Forexample, the appended figures show a support body 2 endowed with threeprotrusion-housing seat pairs. The engaging elements 10 (and inparticular the protrusion-housing seat pairs) can be defined in aplurality of sections of the first and second portions 7, 8. Forexample, as illustrated in FIG. 7, the engaging elements 10 can bedefined near opposite ends of the first and/or of the second portion 7,8 (i.e. near the ends 2 a, 2 b of the support body 2) and in anintermediate portion of the first and of the second portion 7, 8.

The support body 2 is configured to pass from the assembled condition tothe separated condition via the manual action of an operator. In otherwords, it is the operator who, by acting manually on the support body 2,causes the separation of the first sub-body 7 from the second sub-body8, or vice versa.

It is worth noting that, upon the passage from the assembled conditionto the separated condition, a separation between the first and thesecond sub-body 7, 8 of the support body 2, and a separation between afirst and a second sub-collecting portion 4 a, 4 b both take place. Inparticular, the separation of the collecting portion 4 takes place asthe collecting portion 4 is engaged with the support body 2 both in thefirst sub-body 7 and the second sub-body 8 thereof and, consequently,when the portions 7, 8 separate, a first sub-collecting portion 4 a issolidly joined to the first sub-body 7 and thus separates from a secondsub-collecting portion 4 b solidly joined to the second sub-body 8, asillustrated in FIGS. 3 and 7. For example, in the preferred embodiment,in which the collecting portion 4 is flocked, a plurality of fibres(which forms the first sub-collecting portion 4 a) remains attached tothe first sub-body 7 and a respective plurality of fibres (which formsthe second sub-collecting portion 4 b) remains attached to the secondsub-body 8, with minimal or no dispersion of fibres, since all of thelatter remain substantially attached to the first or to the secondsub-collecting portion 4 a, 4 b because of the glue applied during themanufacturing phase, or because firmly connected to the material of thesupport body 2, heated in advance during the manufacturing phase.

As illustrated in FIGS. 3 and 7, the first and the second sub-body 7, 8are configured to be coupled and separated along respective contactsurfaces 11, preferably consisting of flat contact surfaces 11. Thecontact surfaces 11 extend longitudinally along the main longitudinaldirection in the first and second portions 7,8 of the support body 2. Asillustrated in FIGS. 3 and 6-8, the contact surfaces of the first andsecond portions 7, 8 can consist of flat surfaces which, in theassembled condition of the support body 2, are facing and in contactwith each other. The contact surface 11 can extend for a length at leastequal to half a length of the support body 2, as in the variant of theFIG. 1-6. The contact surface 11 can extend for a length at least equalto the entire length of the support body 2, as in the variant of theFIGS. 7 and 8. The contact surface 11 can extend for a length at leastequal to the length of the collecting portion, as in the variant of FIG.9. The contact surface 11 can extend perpendicularly to the mainlongitudinal direction and can coincide with a section of the supportbody perpendicular to the central axis 12, as in the variant of FIG. 10.In the variants of FIG. 9 and FIG. 10, the first sub-body 7 and/or thesecond sub-body 8 may be provided with protruding gripping elements tofacilitate the detachment of the first sub-body 7 from the secondsub-body 8.

In the variants of FIG. 9 and FIG. 10, it can become necessary orconvenient to make use of instruments, for example provided with ablade, suitable for being inserted between the two sub-bodies 7,8 so asto facilitate the detachment thereof at the appropriate moment, with aconsequent separation of the collecting portion and hence of theabsorbing material.

The variant of FIG. 10 is less well suited for use in the forensicfield, in which the collection of the sample in general takes placemainly at the tip of the device, whereas it is better suited for use inother fields (such as, for example, in the collection of samples in bodycavities), in which collection of the sample takes place in the entirecollecting portion.

In all of the variants illustrated, the separation of the two sub-bodiescan take place both manually and in an automated by specific machinery.

In the variant of FIGS. 1-6, the first and the second sub-body 7, 8 havea different longitudinal extent, since the first sub-body 7 extends forthe whole length of the support body 2, whilst the second sub-body 8extends only up to a part of the intermediate portion 2 c. The secondend 2 b of the support body 2 thus consists entirely of the firstsub-body 7. This variant enables the two sub-bodies 7, 8 to be easilyseparated simply by partially bending the first sub-body 7, which iscapable of causing the protrusion 10 a opposite the first end of thesupport body to come out of corresponding housing seat 10 b. In theembodiment illustrated in FIGS. 7 and 8, the first and the secondsub-body 7, 8 extend for a substantially analogous length and thecontact surface 11 extends for the entire length of the support body 2.In this variant there could be provided suitable gripping elements (notillustrated) projecting from the first and from the second sub-body,offset relative to each other, in order to facilitate the gripping andmanual separation of the two sub-bodies. Some possible modes ofseparation between the first and the second sub-body 7, 8 of the supportbody 2 will be described in greater detail below. The separation betweenthe first sub-body 7 and the second sub-body 8 can be achieved, forexample, by bending or moving by rotation the first sub-body 7 relativeto the second sub-body 8, or vice versa. To separate the first and thesecond sub-body 7, 8, the operator grasps one end of the second sub-body8 (preferably the end opposite the collecting portion 4) and moves it,bending it away from a corresponding end of the first sub-body 7. Thismovement causes the disengagement of the engaging elements 10 definednear said end and subsequently, as the second sub-body 8 continues to bemoved away from the first sub-body 7, by virtue of a lever effect, andsimply by a progressive detachment of the two sub-bodies 7,8, the firstsub-collecting portion 4 a is detached from the second sub-collectingportion 4 b. The steps of separating the first sub-body 7 of the supportbody 2 from the second sub-body 8 of the support body 2 are exemplified,for example, in FIGS. 2, 3, 4 and 7. FIG. 2 illustrates the device 1,wherein the support body 2 is in the assembled condition. FIG. 3, on theother hand, illustrates the movement of separating the second sub-body 8from the first sub-body 7 of the support body 2; the rotation movementthat can be carried out to separate said portions 7, 8 is exemplified inFIG. 3. In the illustrated variant, this rotation movement has as itscentre or rotation fulcrum precisely the first end 2 a of the supportbody 2 and the collecting portion 4. According to an unillustratedvariant, the support body 2 can be provided with a pin or an elementpositioned in an intermediate portion of the support body 2, andsuitable and configured for enabling a relative rotation between thefirst and second portion 7, 8 about said pin. In such a case, in orderto achieve a separation between the first and second portion 7, 8 of thesupport body 2, one end of the second sub-body 8 (preferably the end ofthe second sub-body 8 opposite the collecting portion 4) can be graspedand made to rotate in the plane in which the contact surface 11 lies.This separation causes the progressive detachment of the first sub-body7 from the second sub-body 8 and in particular of the firstsub-collecting portion 4 a from the second sub-collecting portion 4 b,with a reciprocal movement of rotation of the two sub-bodies similar tothat of scissors.

In a preferred embodiment, the sub-bodies 7, 8 are half-bodies 7, 8 andthe sub-collecting portions 4 a, 4 b are half-collecting portions 4 a, 4b.

The sub-amounts of a biological sample can be half-amounts of abiological sample. Preferably, the sub- or half-collecting portions aredimensioned in such a way as to have the same sample collectioncapacity. In the present text, the term “sub-body” and the term“half-body” mean sub-parts or half-parts of an overall body comprising,or consisting of such sub-parts or half-parts.

During use, a sampling of biological and/or chemical material is carriedout with the device 1 in an assembled condition. Preferably, thecollection is carried out in such a way as to collect the sample atleast on the end tip of the collecting portion, and preferably in such away as to collect a sufficient and substantially uniform amount of asample over the whole perimeter extent of the tip of the collectingportion, so that following the separation of the first sub-collectingportion 4 a from the second sub-collecting portion 4 b, saidsub-collecting portions both contain a sufficient amount for independentanalysis, and preferably a similar amount of the same sample. Theseparation between the first and second portions 7, 8 of the supportbody 2 and consequently between the first and second sub-collectingportions 4 a, 4 b is carried out following the collection of the sampleof biological and/or chemical material, in a period of time that willvary according to the needs of the specific case. This separation, aswill be seen in greater detail below, enables the processing of a firstamount of the biological and/or chemical sample absorbed from the firstsub-collecting portion 4 a independently of a second amount of thebiological and/or chemical sample absorbed from the secondsub-collecting portion 4 b. For example, the first amount of biologicaland/or chemical sample can be used at a first moment in time and thesecond amount of biological and/or chemical sample can be used at asecond moment in time, even long afterwards. By way of example, thefirst amount of biological and/or chemical sample can be used shortlyafter the collection thereof (for example for testing, analysis or otherlaboratory uses) and the second amount of biological and/or chemicalsample can be stored and used, for example for verification tests andcross-checks, at a later time (days, months or years later) after thecollection thereof. The concepts herein further relate to a method forcollecting and transferring of samples of biological and/or chemicalmaterial by a device of the previously described type. The methodcomprises the step of placing the collecting portion in contact 4 with abiological and/or chemical sample. This step is carried out in such away that the first sub-collecting portion 4 a and the secondsub-collecting portion 4 b respectively collect at least a first amountof the biological and/or chemical sample and at least a second amount ofthe biological and/or chemical sample, both amounts being sufficient toenable the subsequent analyses of the sample. The method can comprise astep of dehydrating the sample collected on the collecting portion toenable better storage of the sample, avoiding the proliferation of fungiand mould which can damage the sample and render it unusable forsuccessive analysis.

The method thus comprises a step of separating the second sub-body 8 ofthe support body 2 from the first sub-body 7 of the support body 2. Thisstep causes the separation of the second sub-collecting portion 4 bcontaining the second amount of biological and/or chemical sample atleast from the first sub-collecting portion 4 a containing the firstamount of biological and/or chemical sample. At this point, at least apart of the first amount of the biological and/or chemical sample isextracted from the first sub-collecting portion 4 a in order to enableoperations of analysis to be performed on the biological and/or chemicalsample at a first moment in time and the second amount of the biologicaland/or chemical sample on the second sub-collecting portion 4 b isstored for a future use following the first moment in time, or viceversa. In order to enable correct storage of the sample of biologicaland/or chemical material, the first amount of the biological and/orchemical sample absorbed from the first sub-collecting portion 4 aand/or the second amount of the biological and/or chemical sampleabsorbed from the second sub-collecting portion 4 b can be stored insuitable containers or test tubes 6 and can be preferably dehydrated,for example by a dehydrating element contained in the gripping portion5. The first and the second sub-collecting portion 4 a, 4 b can beentirely stored with the respective portions 7, 8 of the support body 2or be separated from them to allow storage in containers of reducedsize. For example, the first sub-body 7 of the support body 2 can bestored in a test tube 6 such as the one illustrated in FIG. 1, whereasthe second sub-collecting portion 4 b can be detached from theintermediate portion of the second sub-body 8 by a controlled breakageof the weakened portion 9, and be inserted into an Eppendorf-type testtube 6 a, as illustrated in FIG. 5, to enable the sample to be extractedand subsequent tests to be performed on the sample.

The concepts herein further relate to a process for manufacturing thepreviously described device 1. The process envisages that the first andthe second sub-body 7, 8 of the support body 2 be made separately. Theyare preferably made by moulding, and even more preferably by injectionmoulding. The first sub-body 7 is subsequently engaged with the secondsub-body 8 by a removable coupling, for example in the form of engagingelements 10; at this point, the support body 2 is in the assembledcondition. After the assembly of the support body 2, an amount ofadhesive material (for example glue) is applied to the first end 2 a ofthe support body 2. Alternatively, it is possible to apply the fibrewithout using glue, by heating the material that forms the support body2. The process then envisages making a collecting portion 4, preferablyflocked, at said end 2 a of the support body 2. However, as saidpreviously, other types of collecting portions 2 can be provided.Further steps, of a known type and thus not described in detail, offinishing, treatment and completion of the device can moreover beenvisaged.

The concepts herein enable one or more of the following advantages to beobtained. Firstly, the concepts herein are able to provide a device, aprocess for manufacturing of the device, a method for collecting andtransferring samples of biological and/or chemical material and a use ofthe device capable of overcoming the problems found in the prior art. Inparticular, the concepts herein further enable swabs to be made whichsimplify the obtainment of a sufficient amount of sample to be analysedfor immediate analysis and for future use. The concepts herein furtherenable the collection, transfer and storage of samples of biologicaland/or chemical material to be simplified. The concepts herein furtherenable a high degree of traceability and correct storage of thebiological material to be guaranteed, even for long periods, above all,but not only, for forensic use. In particular, the concepts herein makeit possible to have the certainty that the samples analysed at a latertime will be exactly the same, as they derive from a single samplecollection and the related handling is reduced to a minimum; therefore,the risks of performing the test on different samples, or ofcontaminating the same are very limited. The concepts herein furthermake it possible to reduce handling of the sample and significantlyreduce the risk of contaminating the collected samples and theenvironments involved. The concepts herein further make it possible toincrease the efficiency, safety and reliability of the processes oftreating the biological material collected. The swabs according to theconcepts herein are further very convenient to use, as well as beinghighly reliable and safe to use. Finally, the concepts herein are simpleand economical to implement.

The invention claimed is:
 1. A device for collecting, transferring andstoring samples of biological and/or chemical material, the devicecomprising a support body extending along a main longitudinal directionbetween a first end and a second end opposite each other and connectedby an intermediate portion, and a collecting portion engaged at leastwith the first end of the support body and configured to collect anamount of a sample of biological and/or chemical material, the supportbody being defined by at least a first sub-body and a second sub-bodywhich are distinct from each other and can be selectively coupled so asto define an assembled condition of the support body and selectivelyseparated from each other, so as to define a disassembled condition ofthe support body, and wherein the collecting portion is made and engagedboth on a first end of the first sub-body and on a first end of thesecond sub-body, and is selectively separable, as a result of aseparation of the first sub-body from the second sub-body, so as todefine two sub-collecting portions made on the first sub-body and on thesecond sub-body, respectively; wherein both the collecting portion andthe two sub-collecting portions are made on, and engaged with, the firstend of the support body, wherein the first and the second sub-body haverespective engaging elements configured to ensure the engagement betweenthe first and the second sub-body in the assembled condition of thesupport body and wherein the engaging elements are arranged in at leasttwo distinct sections of the first and of the second sub-body.
 2. Thedevice according to claim 1, wherein said sub-bodies are half-bodies andwherein said sub-collecting portions are half-collecting portions. 3.The device according to claim 1, wherein, in the assembled condition,the two sub-bodies are mutually coupled and the two sub-collectingportions are mutually joined so as to define the collecting portion. 4.The device according to claim 1, wherein the collecting portion definedby the two sub-collecting portions, in the assembled condition, is onesingle piece.
 5. The device according to claim 1, wherein the twosub-collecting portions, in the assembled condition, are adjacent andcontiguous to each other so as to define the collecting portion.
 6. Thedevice according to claim 1, wherein the first sub-body and the secondsub-body both extend at least along the first end of the support bodyand/or at least from the first end of the support body to theintermediate portion of the support body and/or at least from the firstend of the support body to the second end of the support body.
 7. Thedevice according to claim 1, wherein the first sub-body and the secondsub-body both extend longitudinally along said main longitudinaldirection, at least at a part of the collecting portion or at least atthe entire longitudinal extent of the collecting portion.
 8. The deviceaccording to claim 1, wherein the two sub-collecting portionssubstantially comprise the same amount of absorbing material and/or formtwo substantially identical and/or specular halves of the collectingportion.
 9. The device according to claim 1, wherein the support bodyhas a central axis of longitudinal extension extending according to themain longitudinal direction, and wherein the first and the secondsub-body are configured to be selectively separable and coupled onrespective contact surfaces comprising the central axis of longitudinalextension, or on respective flat contact surfaces comprising the centralaxis of longitudinal extension.
 10. The device according to claim 1,wherein the first sub-body and the second sub-body are selectivelycoupled and are separable according to an assembling directionperpendicular to the main longitudinal direction.
 11. The deviceaccording to claim 1, wherein the collecting portion comprises anabsorbing material and/or wherein the collecting portion is configuredto absorb the biological and/or chemical sample by capillarity.
 12. Thedevice according to claim 1, wherein the collecting portion comprises alayer of flocked fibre made by a fibre flocking process on the firstend.
 13. The device according to claim 1, wherein the first and thesecond sub-body have a removable coupling capable of enabling selectiveengagement and disengagement.
 14. The device according to claim 1,wherein the engaging elements are arranged in three distinct sections ofthe first and of the second sub-body, and/or wherein the engagingelements are arranged at least in the intermediate portion and/or atleast at the first and/or the second end and/or at least near thecollecting portion.
 15. The device according to claim 1, wherein thefirst and the second sub-body both extend for a length that is analogousor substantially equal to a length of the support body, or wherein thefirst sub-body has a length that is shorter than the overall length ofthe support body or a length equal to the collecting portion and thesecond sub-body has a length equal to the overall length of the supportbody, or wherein the first sub-body has a shorter length than thecollecting portion and comprises the terminal part of the first end ofthe support body, and wherein the second sub-body has a length that isshorter than the overall length of the support body and corresponds tothe remaining part of the length of the support body, so that the sum ofthe length of the first and of the second sub-body determines theoverall length of the support body.
 16. The device according to claim 1,wherein the first and the second sub-body are made separately asdistinct elements by injection moulding and/or wherein the first and thesecond sub-body have a removable coupling means capable of enablingselective engagement and disengagement and the removable coupling or theengaging elements are made as one piece on the first and/or on thesecond sub-body by injection moulding while the sub-bodies themselvesare being made.
 17. A method for collecting, transferring and storingsamples of biological and chemical material, for forensic purposesand/or from crime scenes, or for environmental sampling, or forcollecting samples from a human or animal body and/or from a human oranimal orifice, in particular for collecting samples from the mouth,pharynx, nasal cavity, eyes, urethra, vagina, anus, rectum, or skin, bya device according to claim 1, the method comprising at least thefollowing steps: placing at least the first sub-collecting portion andthe second sub-collecting portion of the device in contact with abiological and/or chemical sample in such a manner and for such a timeas to collect at least an amount of said sample on said collectingportion, thereby collecting a first sub-amount of said biological sampleon the first sub-collecting portion and at least a second sub-amount ofsaid biological sample on the second sub-collecting portion of thecollecting portion of the device; separating the second sub-body of thesupport body from the first sub-body of the support body, thus causingthe separation of the second sub-collecting portion containing thesecond sub-amount of biological sample at least from the firstsub-collecting portion containing the first sub-amount of biologicalsample.
 18. The device according to claim 1, wherein the engagingelements comprise one or more housing seats formed at least on the firstsub-body and one or more protrusions formed at least on the secondsub-body, or vice versa, each protrusion being suitable for beingengaged inside a respective housing seat in the assembled condition ofthe support body.
 19. A process for manufacturing a device forcollecting, transferring and storing samples of biological and/orchemical material, the process comprising at least the steps of: makinga first sub-body of a support body of the device having respectiveengaging elements arranged in at least two distinct sections of thefirst sub-body, making a second sub-body of the support body of thedevice, distinct from the first sub-body, having respective engagingelements arranged in at least two distinct sections of the secondsub-body and configured to ensure the engagement between the first andthe second sub-body in an assembled condition of the support body;engaging the first sub-body with the second sub-body, by engaging therespective engaging elements, so as to obtain a support body in anassembled condition, and making a collecting portion at a first end ofthe support body, the collecting portion comprising two sub-collectingportions which are mutually joined and associated with the firstsub-body and the second sub-body, respectively.